The highest time in the recording period (* 1) is 、Dec,2018、Nov,2018、Oct,2018、Sep,2018、Aug,2018、Jul,2018、Jun,2018、May,2018、Apr,2018、Mar,2018、Feb,2018、Jan,2018、Dec,2017, per One rice ball, 110 (JPY). Conversely, the cheapest period is 、Jan,2016, 93 (JPY) per One rice ball.

(*1) Includes retail price of utsunomiya, period 2015年1月 to Dec,2018 Rice Ball.